Holy shit:

> U.S. permanent residents (green card holders) who are outside of the United States may be barred from reentry.

That's huge. I don't mean to diminish the importance of banning new immigrants and visitors on a religious basis, that's bad too. But banning people who have already legally immigrated from re-entering the country is completely nuts. There are no doubt people who have lived in this country for decades who happen to be abroad at the moment and are now stuck away from their homes for an unknown period. There will be people who have lived in this country for decades who will be faced with an illness or death in the family and will have to make a choice between going to visit or retaining their ability to stay where they live.